Railway Fasteners Injection Molded Parts
Excepting for iron parts like railway fish plate, rail clip, screw spike, track bolts, there are some plastic and rubber Injection molded parts in the construction of railway track, such as rail pad, plastic dowel, rail insulator, guide plate.
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What are Railway Fasteners Injection Molded Parts?
Railway fasteners injection molded parts are high-performance engineering plastic or composite components, such as insulators, dowels, and pads, manufactured via injection molding for rail fastening systems. These parts provide critical insulation, vibration damping, and structural, wear-resistant, and dielectric properties to secure rails to sleepers.
Key Aspects of Injection Molded Railway Fasteners:
- Common Components: Plastic insulators, nylon dowels (sleeper inserts), and rail pads.
- Materials: Typically, these parts are made from reinforced plastics like Glass Fiber Reinforced Nylon (PA66 + GF) or High-Density Polyethylene (HDPE) for high strength, durability, and insulation properties.
- Function: They maintain rail gauge, prevent electrical current leakage between rail and track circuits, reduce fatigue and impact damage, and provide electric insulation.
- Key Advantages: High precision, excellent electrical resistance, strong vibration reduction, and resistance to environmental stress and corrosion.
- Application: These components are essential in modern fastening systems (e.g., SKL, E-clip, KPO, Nabla) to securely fasten rails to concrete sleepers.
main types of Rail Fastening Injection Molded Parts
rail pad
Rail pads are elastic polyurethane mats which are interposed between steel rails and railway sleepers to protect the sleeper top from wearing and impacting.
Rubber pad specifications:
|
Technical Parameter |
Unit |
Value |
|
Stiffness |
KN |
90-130 |
|
Hardness Shore A |
℃ |
72-80 degree |
|
Electronic Resistance |
Ω |
≥ 106 |
|
Tensile Strength before Aging |
Mpa |
≥12.5 |
|
Elongation before Aging |
% |
≥250 |
Rail Plastic dowel
Railway Plastic Screw Dowel for Sleeper, Plastic HDPE socket for Concrete Sleeper,also known as plastic sleeve, plastic insert, concrete dowel, concrete insert, Nylon Dowel, PA66 Dowel, being widely used in rail fastening.
Railway Plastic Screw Dowel for Concrete Sleeper
PA66 : Nylon 66.69%, glass fiber 30%, other 1%
HDPE
Rail insulator
A rail insulator (or nylon insulator) is a crucial, high-strength fastener component in railway infrastructure that electrically separates rails from concrete sleepers and fastening clips, preventing short circuits in signaling systems.
The properties of GNEE RAIL's rail insulators are as follows:
How are rail fasteners packaged and shipped?
Rail fasteners are typically packaged and shipped according to type, size, and destination requirements.
Small components such as clips, bolts, nuts, and washers are usually packed in woven bags, cartons, or steel drums, often placed on wooden or fumigated pallets. Heavier or bulk items may be bundled, strapped, or palletized to ensure stability during transport. For overseas shipments, packaging often includes moisture-proof materials, such as plastic liners or anti-rust coatings, to prevent corrosion.
Rail fasteners are commonly shipped by sea freight in containers, while urgent or small-volume orders may use air freight. All packages are clearly labeled with product details, quantities, and standards to facilitate customs clearance and site handling.
Contact Us
GNEE RAIL is a professional foreign trade enterprise specializing in railway fasteners, focused on providing international customers with high-quality, full-range track components that meet the requirements of different gauges and construction environments.
We not only supply standardized products but also support custom specifications, along with installation guidance and after-sales services to help customers improve project efficiency. With a stable supply chain and strict quality control, GNEE RAIL has become a trusted partner in the international railway market. Please contact us for more cooperation information.
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